Heat-insulated environment-protection container

ABSTRACT

The present invention provides a heat-insulated container made of an environment-protection material to contain food in a main body of the container while keeping temperature of the food.

FIELD OF THE INVENTION

The present invention relates to a heat-insulated container; moreparticularly, relates to containing food in a main body to keeptemperature of the food while being environment-protecting.

DESCRIPTION OF THE RELATED ARTS

A general container 4 can be a meal box, a cup, etc. to contain food. Asshown in FIG. 9, take a meal box for example. The container 4 comprisesa containing part 41 and a cover 42 located at a side of the container 4to seal an opening of the containing part 41 Thus, food can be containedin the containing part 41 and be sealed in the containing part 41 withthe cover.

Although the food can be kept in the container 4, the container 4 isusually made of a poly foam or a waterproof paper which is not wellconformed with actual needs. Poly foam is made of polystyrene orpolyvinyl chloride which is not degradable; besides, PCDD(polychlorinated dibenzo-p-dioxins) will be produced when it is burnedand may cause serious harm to human body and environment, which is solimited on usage by law. The waterproof paper prevents the disadvantagesof the poly foam; yet its capabilities on heat insulation and warmthkeeping is not good. When a hot food is contained in a container 4 madeof the waterproof paper, human hand can be scalded once the hot food isbeing put in the container 4; yet the hot food will lose heat and becooled down in a short time afterwards. Hence, the prior arts do notfulfill users'requests on actual use.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to contain food in a mainbody while being heat-insulated to keep temperature of the food.

To achieve the above purpose, the present invention is a heat-insulatedenvironment-protection container, where the container comprises a mainbody, which is comprised of a substrate and a coating layer, and themain body has a containing part; and, an inner heat-insulating layer isfoamed in the containing part by using the material of the coatinglayer. Accordingly, a novel heat-insulated environment-protectioncontainer is obtained.

BRIEF DESCRIPTIONS OF THE DRAWINGS

The present invention will be better understood from the followingdetailed descriptions of the preferred embodiments according to thepresent invention, taken in conjunction with the accompanying drawings,in which

FIG. 1 is a perspective view showing a first preferred embodimentaccording to the present invention;

FIG. 2 is a sectional view showing the first preferred embodimentaccording to the present invention;

FIG. 3 is a perspective view showing a second preferred embodimentaccording to the present invention;

FIG. 4 is a perspective view showing a third preferred embodimentaccording to the present invention;

FIG. 5 is a view showing a state of use of the first preferredembodiment according to the present invention;

FIG. 6 is a sectional view showing a fourth preferred embodimentaccording to the present invention;

FIG. 7 is a view showing a state of use of a fifth preferred embodimentaccording to the present invention;

FIG. 8 is a view showing a state of use of a sixth preferred embodimentaccording to the present invention;

FIG. 9 is a perspective view of a prior art.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following descriptions of the preferred embodiments are provided tounderstand the features and the structures of the present invention.

Please refer to FIG. 1 and FIG. 2, which are a perspective view and asectional view showing a first preferred embodiment according to thepresent invention. As shown in the figures, the present invention is aheat-insulated environment-protection container, comprising a main body1 and an inner heat-insulating layer, where the main body 1 isheat-insulated by the inner heat-insulating layer 2 to contain food.

The main body 1 comprises a substrate 11 and a coating layer 12 deposedon outside surface of the substrate 11. The substrate 11 is made of awaterproof paper; and the coating layer 12 is made of a low densitypolyethylene. The main bosy 1 comprises a containing part 13.

The inner heat-insulating layer 2 is foamed by using the material of thecoating layer 12 and is deposed in the containing part 13. The innerheat-insulating layer 2 is made of a chemical-synthesized biodegradablematerial of a polylactic acid, a polycaprolactone or an a aliphaticcompound; or a biodegradable material of a microorganism fermentation ofPHA or PHB. The inner heat-insulating layer 2 comprises a plurality ofbubbles 21 on inner surface of the inner heat-insulating layer 2. Thus,a novel heat-insulated environment-protection container is obtained.

Please refer to FIG. 3 through FIG. 5, which are perspective viewsshowing a second preferred embodiment and a third preferred embodimentand a view showing a state of use of the first embodiment, according tothe present invention. As shown in the present invention, when using thepresent invention, a meal box (as shown in FIG. 1), a cup (as shown inFIG. 3) or a Pizza box (as shown in FIG. 4) with a main body 1 can bemade according to the requirement to contain food 3 in the main body 1,1 a, 1 b. A print area 14 is located on outside surface of the main body1, 1 a, 1 b to be printed with product description and trademarkpattern.

Take the meal box for example. When using the present invention, food 3is contained in the containing part 13 of the main body 1; and the mainbody 1 is covered by a cover 15 to seal the food 3 in the main body 1.By doing so, the food 3 contained in the main body 1 is heat-insulatedby the inner heat-insulating layer 2. In addition, the innerheat-insulating layer 2 is made by a foaming to obtain light-weight andlow cost while comprising a self-degration in nature (conformed withTaiwan's National Standard, CNS14432, Method for determination of theultimate aerobic biodegradability and disintegration of plasticmaterials under controlled composting conditions—Method for Analysis ofevolved carbon dioxide) to cause no harm to environment or beingrecycled for a degration into compost (conformed with Taiwan's NationalStandard, CNS146611, Method for determination of compostable plastics)to enhance economic benefits of the container.

Please refer to FIG. 6, which is a sectional view showing a fourthpreferred embodiment according to the present invention. As shown in thefigure, not only an inner heat-insulating layer 2 is deposed in acontaining part 13 of a main body 1, but also an outer heat-insulatinglayer 2 a, obtained by foaming with the material of a coating layer 12,is deposed on outside surface of the main body 1; thus, the main body isbiodegradable, warmth-keeping and heat-insulated. Regarding a main body1 a (as shown in FIG. 3) of a cup to contain hot drink, a temperature inthe containing part 13 is kept by the inner heat-insulating layer 2 anda scald to the palm is prevented by the outer heat-insulating layer 2 a.

Please refer to FIG. 7 and FIG. 8, which are views showing a state ofuse of a fifth and a sixth preferred embodiments according to thepresent invention. As shown in the figures, the present invention isused to contain an ice product 31 or a fresh food 32 in a main body 1 c,1 d, which means that the present invention can be used to contain foodto prevent heat from transferring. When storing a hot food, the presentinvention prevents heat of the food from transferring out to theoutside; and, when storing a cool or cold food, the present inventionprevents heat of the outside from transferring in to the food.

To sum up, the present invention is a heat-insulatedenvironment-protection container, where a containing part of a main bodyis heat-insulated by using an inner heat-insulating layer in thecontaining part when containing food to keep the temperature of thefood.

The preferred embodiments herein disclosed are not intended tounnecessarily limit the scope of the invention. Therefore, simplemodifications or variations belonging to the equivalent of the scope ofthe claims and the instructions disclosed herein for a patent are allwithin the scope of the present invention.

1. A heat-insulated environment-protection container, comprising: a mainbody comprising a substrate and a coating layer, said coating layerdeposed on surface of said substrate, said ma in body comprising acontaining part; and an inner heat-insulating layer foamed by using amaterial of said coating layer, said inner heat-insulating layer deposedon said containing part.
 2. The container according to claim 1, whereina print area is located on outside surface of said main body
 3. Thecontainer according to claim 1, wherein said substrate is made of awaterproof paper.
 4. The container according to claim 1, wherein saidcoating layer is made of a polyethylene.
 5. The container according toclaim 1, wherein said coating layer is made of a low densitypolyethylene.
 6. The container according to claim 1, wherein saidcoating layer is made of a biodegration material.
 7. The containeraccording to claim 1, wherein said coating layer is made of achemical-synthesized biodegradable material selected from a groupconsisting of a polylactic acid, a polycaprolactone and an aliphaticcompound.
 8. The container according to claim 1, wherein said coatinglayer is made of a biodegradable material selected from a groupconsisting of a microorganism fermentation of PHA and a microorganismfermentation of PHB.
 9. A heat-insulated environment-protectioncontainer, comprising: a main body comprising a substrate and a coatinglayer, said coating layer deposed on surface of said substrate, said main body comprising a containing part; and a heat-insulating layer foamedby using a material of said coating layer.